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high TEMP and high pressure station gate valve
2016-10-23 14:29
1)body:WCB/WC6/WC92)disc:WCB/WC6/WC93)stem:1Cr17Ni2/20Cr1Mo1Va4)bonnet:1Cr17Ni2/12Cr1Mo1Va5)seat:25/12Cr1Mo1Va6)seal rin
